Header Event
Fired every time a header is parsed.
Syntax
mime.on('Header', [callback])
Callback
The 'callback' is called when the 'Header' event is emited.
function(e){ }
The argument 'e' has the following properties:
e.partIndex e.field e.value (buffer)
Remarks
The PartIndex parameter contains the index of the part containing the current header. If the header is from the MIME body, this value will be -1. The Field parameter contains the name of the MIME header. The Value parameter contains the header contents. The Header event is fired when a header is parsed, which occurs for each header of the Message when DecodeFromFile, DecodeFromString, or DecodeFromStream is called.